Attachment for operating gate



ATTACHMENT FOR OPERATING GATE VALVES BY MEANS OF FLUID PRESSURE FROM ANY DESIRED DISTANCE Original Filed July 22, 1932 6 Sheets-Sheet 1 June 16, 1936. c H JR Re. 20,007

rrrrmrm rm C. 'H LL, JR,

, June 16, 1936. Q HALL JR Re. 20,007 ATTACHMENT FOR OPERATING GATE VALVES BY MEANS 1 OF FLUID PRESSURE FROM ANY DESIRED DISTANCE Original Filed July 22,, 1932 6 Sheets-Sheet 2 i 40 I I 40 C 62M J/a,

June 16, 1936. Q HALL JR R6. 20,007

ATTACHMENT FOR OPERATING GATE VALVES BY MEANS OF FLUID PRESSURE FROM ANY DESIRED DISTANCE Original Filed July 22, 1932 6 Sheets-Sheet 3 3! J4 O I 37 2 6 K z I 36 6 O 33@ Y 3a 32/ I Jz June 16, 1936. I c HALL JR Re. 20,007

ATTACHMENT FOR OPERATING GATE VALVES BY MEANS OF FLUID PRESSURE FROM ANY DESIRED DISTANCE Original Filed July 22, 1952 6 Sheets-Sheet 4 June 16, 1936. c. HALLJJR ATTACHMENT FOR OPERATING GATE VALVES BY MEANS,

OF FLUID PRESSURE FROM A'NY DESIREDDISTANGE 6 Sheets-Sheet 5 Original Filed July 22, 1932 d 6 131114: N\ mm. a nn 7 a o .lan

1 n an a a June 16, 1936. c HALL, JR Re. 20,007

ATTACHMENT FOR OPERATING GATE VALVES BY MEANS OF FLUID PRESSURE FROM ANY DESIRED DISTANCE Original Filed July 22, 1952 6 Sheets-Sheet 6 Reissuecl June 16, 1936 UNITED STATES ATTACHMENT FOR OPERATING GATE VALVES BY MEANS OF FLUID PRESSURE FROM ANY DESIRED DISTANCE Carlos Hall, Jr.. Mexico, D. F., Mexico, assignor of one-half to Harry Hadfield Hallatt, Mexico,

D. F., Mexico Original No. 1,977,554, dated. October 16, 1934, Serial No. 624,127, July 22, 1932, and in Mexico June 23, 1932.

Application for reissue March 24, 1936, Serial No. 70,706

4 Claims. (Cl. 137-139) The invention relates to means for opening and closing gate valves by means of pressure of water, air, steam, gas or any other fluid element from any desired distance or by hand, and it consists in the constructions, arrangements and combinations herein described and claimed.

The device according to the present invention is illustrated in the accompanying drawings, in which the same numbers of reference refer to the same parts in all the figures.

In the drawings:

Figure 1 is a front view of an ordinary nonrising stem valve.

Figure 2 is a vertical semi-sectional view of the same valve seen from the side.

Figure 3 is a view in elevation of an attachment for nonrising stem valves.

Figure 4 is a similar view of the same-attachment but without the pipe connections and drain cocks, in order to better show details of the attachment.

Figure 5 is a vertical cross section of the same attachment. I

Figure 6 shows the same attachment installed on a nonrising stem valve, the pipes conducting fluid pressure and a hydraulic pressure pump which will operate the attachment. The form of using hydraulic pressure is only shown as an example, as any other kind of fluid element may be employed.

Figure '7 shows an attachment with only one cylinder, which is connected to a1non-rising stem valve.

.Figure 8 shows a vertical cross section of the same attachment and valve..

Figure 9 is a total view of. an attachment with only one cylinder for a non-rising stem valve.

The following is a description of the mechanism and operation of the difierent attachments mentioned in the foregoing.

, The mechanism andthe operation of the attachment will be described in the following order:

1. Attachment with two cylinders for use on nonrising stem valves. Figures 1, 2, 3, '4, 5, and 6.

2. Attachment with only one cylinder for use on nonrising stem valves. Figures 7, 8 and 9. As is well known, a nonrising stem valve consists of the stem I which opens and closes the gate 2 of the valve. The stem is provided at about its middle portion with a collar 3 which is held in the valve body by the head of the dome 4 and the stufling box 5 in such mannerthat it cannot be raised or lowered but only turned. The opening or closing of the valve by means of the'gate 2 is efiected by means of the thread 5 on the stem I which corresponds to the thread I of the gate 2 in such manner that, for instance, when the hand wheel 8 is turned to the right the gate 2 will rise on the thread 6 of the stem I, or it will descend on the same thread when the wheel is turned to the left. In both operations the stem I will not partake in the movement of the gate.

The attachment with two cylinders for nonrising stem valves is connected to the valve in the following manner:

The nut 9, the hand wheel 8, the stuffing box I0, screws and nuts I I, stufling box 5, the screws and nuts I2 of the stuffing box and the stem I are removed from the valve as shown in Figure 1 whereafter the attachment shown in Figured is placed on the upper part of the valve and secured by means of the screws and nuts l2. Then the pipes I3 and I I, which conduct fluid pressure from a distance for operating the valves, as for instance from a pump I5 or from a deposit of air, gas vapor or any other fluid element in compressed condition, are connected. In order to open the valve from a long distance by means of the attachment, the following has to be done:

The valve I'I is'opened and the drain cock I9 is closed, the valve I6 is closed and the drain cock I8 is opened. When this is done, pressure is applied either by means of the pump I 5 or by means of the pressure deposit. In this manner there will be injected fluid pressure through the pipe I4 to the lower part of the cylinders beneath the plungers, and consequently these plungers when rising will open the gate 8 of the valve dislodging the fluid element contained in the upper part of the' cylinders through the pipe I3 and drain cock I8.

To close the valve by means of the attachment and by fluid pressure, the following has to be done:

Close the valve I'I, open the drain cock I9, open the valve I6 and close the drain cock I8.

v When hydraulic pressure is used for operating the attachment then the pipes I3 and I4 will first have to be filled with water, and in order to do this, the valves 22 and 23 must first be opened closing at the same time drain cocks I8 and I9, whereafter the valves I6 and I! are opened and the pump is started to work until sufiicient water comes out through the valves 22 and 23.

Each pipe I3 and I4 is provided near the pump I5 with manometers 24 and 25 and safety valves 20 and 2 I. The manometers have for their object to avoid that more pressure than that required for opening and closing the valve be injected, and the safety valves will allow the escape of any excess of pressure caused for instance by a fire near the attachment and the. consequent pro-; duction of steam by the water contained within the cylinders of the attachment and in the pipes l3 and I4.

The attachment with two rising stem valves is compo (Figs. 3, 4, 5 and 6).

The main body of the attachment is formed by two twin cylinders 26 which cc institute a single body as they are united by a bridge. 21-. Inside. the said cylinders are found the plungers 23 which move the stems 29 which in turn corn; municate the movement, by. ineajii s (if the. 30, to the stem 3| of the attfac rfient thereby. to the gate of the valve.

As may be seen in Figure 4, the mouths of the cylinders are hermetically closed by means of the P g 1 91 4? W1llQ u 5 a lied 1 1 51 t e ape re the Plun er-tw l ascend ndthereby. o en the. ate. it e. ve t P essure plie ro h. he. anthers as. Pl n es. w de cend. and. thereby c o e th a e 2 or he lve ma -he een. i i ure nd the. stem. i Provided with. hread omit teri r pa in rder qq neect. i h t esa e Qi valve At ab ut t middle er enth s idste sa pt vided with thread so that the valve. may he. pened. and. 9581 1 b hand. bnmea i o a e t m nut. .5.- id. h braces. These i ces n 36. hou d; be remqved. w e he a ach: m n i p at d. b u d. ess e. a d. his is. doneby e o n he crewsfli mi The... tach ent cordi o. i ures. 3. 5 and. 6 onnect d c he basenbv me ns of. scrsws fland h base 91s on ected direc rto h headl. f the va-lrebxmeans of; screws I2; h a e as not. he nmadean ntegralpart of he. a achment. with h ob ctv o e ng. abl to s n'at a hmen on s llera -kindsontypes. of ai s t he. am .e. thiscaseonly. the base uld. h ve o be mad of. different.-. size. Bo h. v t m and..-. he. .tems. 29. areprovided tu bqxe 4! and. The stemsnare. ovi ed... with. n etall eadiustin rin s .41 0 that n. ase of fi ein. a. p troleum well duringwhicn cylinders for nonieq estima e.

. he e he washers o hepl n ersared stroy i the said plungers. still operate. the. attachment byflu d .n fe'ssure. forclosingtheyalve.

Figures 7, 8 9, sho.w .the..same. attachment but constructed with. only. one. cylinden. Other:v Wi e. h s... att chment, is' -constructed' with. the same characteristics as the. one. justide'scribed; and can be applied to any kind of nonris'ing sten i. valve for; thesamehl p se described. The form shownlin. Figs. 7, 8 and-'9 isi very. simple, as it can be connected directly to the upper part. 4.. oi. the. valve. by. means on the screwsJL In order. to. provide. an. ordinary. nonrising stem valve .with this attachment, it will be neces-J' sarytoremove thehand .wheell8, the stuffing .boi: l0, thej'screws and .nuts'l l,the' stuflingbox 5, the screws and nuts I21 of..the stufling, boxand the stem l Whereafter the attachment-is mounted on thepart 4.015 the,va1ve.(Fig..7), T-hebaseji-is thereafter sefluredito the. part 4,- by. meansjpf screws l2 connecting previously the thread 46 of the stem 4'|.,oi the;a ttachment.to-the gate .2..of the e.v

The attachment .consistsof .a .cylinder. 48 which is united with thebasepfiiby meansotthreadja The cylinder has a stem 41 with a. plunger 50 which operates the stem 41 of the attachment by fluid pressure. When pressure is applied through pipe l3 the plunger will descend with the stem 41 which will cl ose'the gate 2 of the valve. If pressure is applied through pipe [4 then the plunger 59 will ascend together with the stem 41 and open the gate of the valve.

The cylinder 48 is hermetically closed in its IQWQLEXt femeby the plug 5| and the stem 41 is properly packed in the base 45 by means of the stufiing box 52 and in the plug 5| of the cylinder by. means of; the. stuffing box 53. The stem also has a packing' in "the upper part of the cylinder 4;} by, means oi the stuffing box 54 and has attaclidih its'upper' part the hand wheel 55 which s sro p a ng and closing the valve by hand. hanclwheel will be the same as that found on the original valve.

Iriorder to open or close the valve by hand with the wheel; fluid pressureisfirst applied through pipe 13 until the gate, 2; oi thevalve remains in. closed position, andthereafter the, drain cocks 12!;v Bare closed. This done, the hand. wheel 55, by turning in one. direction. or the. other, will raise or lower the. gate 2; on the thread 46.- of the stern 4-1; of the. attachment in. order to respec-- tively. open or close thevalve,

The operation, of theattachment by-fluid. pressure is the same as, that of; the... previously, de-.. scribed attachment with two cylinders.

Having, thus, described the. invention, what I claim is:

1;. The combination of; a gatevalve. of the. type including a body, a. gate. and. a bonnet, a fluid actuated piston detachably connected. with. the bonnet and including a stem, means forsadjustablyconnecting. the, stem and; thegate, a manually. operable handle means. associated with the stem, andmeans. for. admitting .fluidi under .pressure above and below the piston for operating-the gate, from. a fullyclosed; to.v a. fully: opened: position or from a fully closed to an intermediate position. depending on. the. adjustable relation ifiliweexi the. .sternahdgate.

2, Thecombinatlomof a gate-valveof-the type havingnbody, a gateeandia bonnet, a cylinder detachablyconnected with the bonnet. a. piston within. the, cylinder-.includinga stem, said stem extending into the body for adjustable connectiQI with thegate.oflthervalve-and beyond the cylinder, manually... operable means associated .with the stem exteriorly of the cylinder,- and means for... admitting fluid: under pressure to the upper and lower parts .of.the.cylinderfrom-a dlswith-the..exception-of .ansopenin'g. andthe -oppositeendopen, a stem arranged through andiprojecting. beyondbothendsof the cylinder, a piston on'i fthestem inside of thes'cyli'nder, a supporting member. at theinnenen'd offthe cylinder, and detachably connected to thebonnetlof th'e valve, packing .means'in the cyli'nd'er, the lower end of the. stem. beinghthreaded fordetachable and adjustable engagementwith the gate, means-for admitting fliiid lpressure to the upper andlowei parts of the said cylinder, and a hand wheel on the outer end of the stem for independent operation of the valve.

4. An attachment for operating from a. dis- 5 tance by fluid pressure stemmed gate valves of the type having a body, a gate and a. bonnet and comprising a base detachably connected to the bonnet of the valve, 2, single cylinder connected to the upper part of the base, a stem arranged 10 through the cylinder and base and extending into the body and having a screw thread on its lower end for adjustably connecting the stem to the gate of the valve, a handle member secured to the upper extremity of the stern, a piston on said stem within said cylinder, and means for admitting fluid under pressure to the upper and lower parts of said cylinder from a distant point for operating the gate from a fully closed to a fully opened position or from a fully closed to an intermediate position depending on the adjustable relation between the stem and gate.

CARLOS HALL, JR. 

